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Golder Associates Inc. <br />44 Union Boulevard. Suite 300 <br />Lakewood: CO USA 80228 <br />Telephone (303) 980-0540 <br />Fax (303) 985 -2080 <br />October 11, 1999 <br />Cripple Creek & Victor Gold Mining Company <br />P.O. Box 191 <br />2755 State Highway 67 <br />Victor, CO 80860 <br />Attention: Mr. Ron Roberts <br />RE: LOAD - PERMEABILITY TESTING RESULTS <br />Dear Ron: <br />Golder Associates Inc. (Golder) is pleased to present the results of Load - Permeability tests <br />conducted in support of the Cripple Creek and Victor. Gold Mining Company (CC &V) <br />Valley Leach Facility (VLF). This report details the results for gradation and permeability <br />versus load (consolidation) testing performed on Drain Cover Fill material. <br />1.0 MATERIAL DESCRIPTION <br />A sample of Drain Cover Fill was provided by CC &V and used in the Load - Permeability <br />testing program. The general sample gradation and description is provided below and <br />summarized in Table 1: <br />U.S. Standard Sieve Size Percent Passing <br />1 -1/2 inch 100 <br />3/4 inch 78 <br />3/8 inch — 53 <br />No. 4 36 <br />No. 40 - 13 <br />No. 200 6 <br />2.0 CONSOLIDATION AND PERMEABILITY TESTING <br />Our Ref.: 993 - 2075.002 <br />The sample classifies as a fine to coarse GRAVEL, with some fine to coarse sand with <br />little clay (Figures 1 and 2). <br />Hydraulic conductivity (permeability) and consolidation testing was conducted on the Drain <br />Cover Fill sample. The sample was loaded to normal pressures of 153, 305, and 450 <br />pounds per square inch (psi) and tested for permeability. The maximum test pressure of <br />450 psi is the maximum capacity of the testing apparatus. <br />